If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( u )
2*u-4 = 0
2*u-4 = 0
2*u-4 = 0
2*u-4 = 0 // + 4
2*u = 4 // : 2
u = 4/2
u = 2
u in (-oo:2) U (2:+oo)
(7*u)/(2*u-4) = 0
7*u = 0 // : 7
u = 0
u = 0
| -2v^2+11v=9 | | (2v-9)(1-V)=0 | | 2/5x-1/6=-3/5x-1/3 | | (5)/(6-2u) | | -4(3n+4)=20 | | r=p-q/3 | | 8y+5-y=2+6y-3 | | (4y/3x)/(2y^5/9xy) | | 2y+x^2=12 | | 2x+y^2=12 | | -4x-17=-81 | | 6(4v+8)=264 | | (xy^2)(x^4y^3)= | | 5x-(7x+7y)= | | (X-3x)-5=-2x-2x+1 | | 9x-9+9x-9=180 | | (X-3)-5=-2x-2x+1 | | 2x+y=x+13y | | x+(.05x)=5401 | | 8x+26=x^2-7 | | 2x^4+9x^3-2x^2-39x-18=0 | | 10+11x=120 | | 4(w-7)=-20 | | 6x+14=80 | | y-(-8)=-1/2(x-(-4)) | | -1+21x=125 | | 5X+6+4x+10=52 | | 2x+37=10-51 | | -7x/28x^2 | | (5xy^2)(-7x^4y^3)= | | 8-(w-1)=9 | | 1/4*1/4*4/5 |